Hindustan Zinc Limited has made a regulatory disclosure pursuant to Regulation 30 of the SEBI Listing Regulations regarding an ESG rating assignment.

Crisil ESG Ratings & Analytics Ltd, a SEBI registered ESG Rating Provider, has independently and voluntarily assigned the Company an Environmental, Social & Governance rating of "Crisil ESG 62" under the category "Strong".

The Company received intimation of this rating via email from BSE Limited on July 21, 2026 at 08:29 p.m.

Importantly, the Company clarified that it has not engaged Crisil ESG Ratings for this ESG rating assessment. The rating report was prepared independently by Crisil ESG Ratings based solely on publicly available information and disclosures.

The ESG rating is available at the following link: https://www.crisilesg.com/en/home/esg-ratings.html

The disclosure was signed by Aashhima V Khanna, Company Secretary & Compliance Officer of Hindustan Zinc Limited, on July 22, 2026 at 16:09:34 IST.

Financial Impact

No financial impact quantified in the disclosure. The rating represents an independent assessment without company engagement or financial transaction.